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Vehicle drive control device and control method thereof

A technology for limiting devices and vehicles, applied in control devices, transmission devices, engine control, etc., can solve problems such as fuel efficiency decline, fuel efficiency and driving performance decline, and achieve the effect of reducing buzzing noise

Inactive Publication Date: 2004-04-14
TOYOTA JIDOSHA KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the lock-up clutch is disengaged, fuel efficiency drops due to transmission losses in the hydrodynamic transmission
Fuel efficiency and ride performance degrade when shift map is corrected

Method used

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  • Vehicle drive control device and control method thereof
  • Vehicle drive control device and control method thereof
  • Vehicle drive control device and control method thereof

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Embodiment Construction

[0043] In the following description and in the drawings, the invention is explained in detail by way of illustrative embodiments.

[0044] Various embodiments of the present invention will be described below with reference to the accompanying drawings.

[0045] figure 1 It is a schematic diagram of a vehicle driving device 10 applying the present invention. The vehicle driving device 10 is a horizontal installation type, and is suitable for a front-engine front-drive vehicle. The vehicle drive device 10 includes an engine 12 as a driving force source for traveling. The output of the engine 12, which consists of an internal combustion engine, is transmitted to a torque converter 14 as a hydraulic transmission. Then, the output is transmitted to a differential gear device (differential) 22 via a forward-reverse conversion device 16 , a belt-type continuously variable transmission (CVT) 18 and a reduction gear 20 . This output is then distributed to the left and right drive w...

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PUM

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Abstract

When the delay control of ignition timing of an engine 12 is performed by a knocking counter measure means 104 when an accelerator operation is performed from idling traveling in the engagement of a lock-up clutch 26, an annealing treatment is not properly performed by an annealing treatment means 106. Therefore, the lock-up clutch 26 is released to prevent the shock. When the engine speed is raised by the accelerator operation, in the engagement of the lock-up clutch 26, and gets in a muffle sound generating area, the lock-up clutch 26 is released, a continuously variable transmission 18 is changed in speed so that the turbine rotating speed gets out of the muffled sound generating area, and the lock-up clutch 26 is then re-engaged to extend the engagement area of the lock-up clutch 26.

Description

technical field [0001] The invention relates to a vehicle driving control device and a control method thereof, in particular to the control of a locking clutch. Background technique [0002] A kind of vehicle driving control device is known, and it comprises (a) an engine that utilizes fuel combustion to generate power; (b) an automatic transmission that can automatically change the gear ratio; (c) an output of the engine is transmitted to A hydrodynamic transmission for an automatic transmission in which the input side and the output side may be directly coupled (coupled) by a lock-up clutch; (d) a fuel cutoff device that coasts with the engine throttle fully closed and when a predetermined fuel cutoff condition is met , the fuel cutoff means stops fuel supply to the engine; and (e) a lock-up engagement means engages the lock-up clutch when a predetermined lock-up engagement condition is satisfied. An example of such a vehicle drive control device is disclosed in Japanese ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W10/04B60W10/02F02D29/00F02D41/12F02D41/32F02D45/00F16H59/74F16H61/00F16H61/14F16H63/50
CPCF16H61/143B60K2741/045F16H59/74B60W10/04B60W10/10B60W30/1819
Inventor 近藤宏纪羽渊良司
Owner TOYOTA JIDOSHA KK